Physics, 27.12.2019 07:31 lizzyhearts
A0.75 kg block slides with a constant velocity down a 20° inclined plane. a. how much work is done by the force of friction on the block as it slides the total length of the plane? b. what is the net work done on the block? c. discuss the net work done if the angle of incline is adjusted so that the block accelerates down the plane. d. in part (c) is it possible for the frictional work to be greater in magnitude than the gravitational work? what would this mean in terms of the block’s speed?
Answers: 2
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
Physics, 22.06.2019 14:30, arianaaldaz062002
An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet. whats one advantage of using electromagnetic in devices
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Physics, 22.06.2019 18:00, levilugar
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
A0.75 kg block slides with a constant velocity down a 20° inclined plane. a. how much work is done b...
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